Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quem jogou simples masculino em 1951?
 ###Tabelas: CREATE TABLE ships_in_class (ships_in_class_id AUTO_INCREMENT PRIMARY KEY, Ship VARCHAR, Hull Number VARCHAR, Laid down VARCHAR, Launched VARCHAR, Commissioned VARCHAR) CREATE TABLE list_of_fina_diving_world_series (list_of_fina_diving_world_series_id AUTO_INCREMENT PRIMARY KEY, Year INT, 1st Venue VARCHAR, 2nd Venue VARCHAR, 3rd Venue VARCHAR, 4th Venue VARCHAR, 5th Venue VARCHAR) CREATE TABLE detailed_olympic_results (detailed_olympic_results_id AUTO_INCREMENT PRIMARY KEY, Year INT, Competition Description VARCHAR, Location VARCHAR, Apparatus VARCHAR, Score-Final INT, Score-Qualifying INT) CREATE TABLE winners (winners_id AUTO_INCREMENT PRIMARY KEY, Year VARCHAR, Men's singles VARCHAR, Women's singles VARCHAR, Men's doubles VARCHAR, Women's doubles VARCHAR) CREATE TABLE wellington_city (wellington_city_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Years VARCHAR, Gender VARCHAR, Locality VARCHAR, Authority VARCHAR, Decile INT)  
SELECT Men's singles FROM winners WHERE Year = 1951